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15 February 2011 1100 W Yb:YAG femtosecond Innoslab amplifier
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Abstract
Laser sources of high average power are essential to transfer femtosecond technology to industrial applications. We demonstrate a compact diode-pumped Yb:KGW femtosecond oscillator-Yb:YAG Innoslab amplifier MOPA with nearly transform and diffraction limited 636 fs pulses at 620 W average output power and 20 MHz repetition rate. By cascading two amplifiers an average output power of 1.1 kW and peak power of 80 MW is achieved in a single, linearly polarized beam. The MOPA is operated at room temperature and no CPA technique is used. The specific properties of Innoslab MOPAs are compared with fibers and thin-disks.
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Peter Russbueldt, Torsten Mans, Hans-Dieter Hoffmann, and Reinhart Poprawe "1100 W Yb:YAG femtosecond Innoslab amplifier", Proc. SPIE 7912, Solid State Lasers XX: Technology and Devices, 79120R (15 February 2011); doi: 10.1117/12.878472; https://doi.org/10.1117/12.878472
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